Discontinued Operations and Related Assets Held for Sale (Details) - USD ($) $ in Thousands	3 Months Ended		4 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Current Assets:
Total current assets of discontinued operations	$ 92,873		$ 92,873	$ 92,873		$ 98,281
Long-term Assets:
Total long-term assets of discontinued operations						103,975
Current Liabilities:
Total current liabilities of discontinued operations	19,315		19,315	19,315		23,082
Long-term Liabilities:
Long-term liabilities of discontinued operations						1,167
Engineered Solutions [Member] | Discontinued Operations, Held-for-sale [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Net sales	29,930	$ 39,313		59,019	$ 84,030
Cost of sales	24,569	37,591		50,554	78,037
Gross profit	5,361	1,722		8,465	5,993
Research and development	813	764		1,691	1,679
Selling and administrative expenses	5,314	5,544		9,760	11,745
Rationalizations	(255)	1,794		(246)	4,210
Impairment	105,600	0	105,600	105,600	0
Operating loss	(106,111)	(6,380)		(108,340)	(11,641)
Other expense (income)	(81)	(37)		(72)	(64)
Interest expense	951	399		1,670	695
Loss from discontinued operations before income taxes	(106,981)	(6,742)		(109,938)	(12,272)
Benefit from income taxes on discontinued operations	843	1,040		1,236	486
Net (loss) income from discontinued operations	(106,138)	$ (5,702)		(108,702)	(11,786)
Discontinued Operation, Alternative Cash Flow Information [Abstract]
Depreciation and amortization				3,052	7,330
Deferred income taxes				(1,236)	(486)
Capital expenditures				2,513	$ 9,413
Current Assets:
Accounts receivable	19,030		19,030	19,030		20,425
Inventories	77,656		77,656	77,656		77,332
Prepaid expenses and other current assets	924		924	924		524
Total current assets of discontinued operations	97,610		97,610	97,610		98,281
Long-term Assets:
Net property plant and equipment	86,595		86,595	86,595		86,369
Other assets	14,268		14,268	14,268		17,606
Total long-term assets of discontinued operations	100,863		100,863	100,863		103,975
Impairment upon reclassification to discontinued operations	(105,600)		(105,600)	(105,600)		0
Total assets of discontinued operations	92,873		92,873	92,873		202,256
Current Liabilities:
Accounts payable	6,499		6,499	6,499		9,331
Accrued income and other taxes	2,500		2,500	2,500		3,113
Other accrued liabilities	9,336		9,336	9,336		10,638
Total current liabilities of discontinued operations	18,335		18,335	18,335		23,082
Long-term Liabilities:
Long-term liabilities of discontinued operations	980		980	980		1,167
Total liabilities of discontinued operations	$ 19,315		$ 19,315	$ 19,315		$ 24,249